Effect of settling time and pH on the treatment of domestic grey water using custard apple seeds as natural coagulant

Rathore Kavish, Nautiyal Roopika, Raj Ishant, Uliana Shivangi, Shah Brij and T. S. Anantha Singh
Additional contact information
Rathore Kavish: Pandit Deendayal Petroleum University, Gandhinagar, India
Nautiyal Roopika: Pandit Deendayal Petroleum University, Gandhinagar, India
Raj Ishant: Pandit Deendayal Petroleum University, Gandhinagar, India
Uliana Shivangi: Pandit Deendayal Petroleum University, Gandhinagar, India
Shah Brij: Pandit Deendayal Petroleum University, Gandhinagar, India
T. S. Anantha Singh: Pandit Deendayal Petroleum University, Gandhinagar, India

Journal of Applied and Physical Sciences, 2018, vol. 4, issue 1, 26-33

Abstract: Water scarcity along with climate change, population growth and development pose difficulties for the present water supply systems. Today, 2.1 billion people globally are living without a safe water supply near their home. Hence, domestic wastewater treatment along with its reuse is becoming a significant topic for research. Grey water is all wastewater generated in households, public or commercial properties without fecal contamination. Treating and reusing grey water decreases the quantity of fresh water needed and also lessens the volume of wastewater flowing into the sewer system. The grey water sample was taken from a residential society in Ahmedabad and the natural coagulant used was freely and locally available Custard Apple (Annona Reticulata) seeds. The initial characteristics of the grey water were accessed based on the parameters pH, TS, TDS, Turbidity and COD and measured as 7.79, 780 mg/L, 590 mg/L, 276 NTU and 625 mg/L respectively. Turbidity and COD were analysed for different concentrations of Coagulant Dosage and also by varying the Settling Time and pH. The settling time was varied from 10 to 30 minutes considering the elimination of micro-flocs and pH was varied from 4 to 9. The optimum results were obtained at settling time of 30 minutes, pH 9 and 10 mg/L coagulant dosage giving 85% turbidity removal and 82% COD removal. It was observed that adding organic coagulant beyond the optimum level contributes to COD. The study focuses on investigating the effect of natural coagulant on treatment of domestic grey water along with factors affecting the removal efficiency

Keywords: Grey water; Natural coagulant; Custard apple; Optimum dosage; Removal efficiency (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://tafpublications.com/platform/Articles/full-japs4.1.4.php (application/pdf)
https://tafpublications.com/gip_content/paper/Japs-4.1.4.pdf (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:apb:japsss:2018:p:26-33

DOI: 10.20474/japs-4.1.4

Access Statistics for this article

Journal of Applied and Physical Sciences is currently edited by Prof. Vakhrushev Alexander

More articles in Journal of Applied and Physical Sciences from Prof. Vakhrushev Alexander Calle Alarcon 66, Sant Adrian De Besos 08930, Barcelona Spain.
Bibliographic data for series maintained by Prof. Vakhrushev Alexander ().